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October 13, 2004

BehindTheMedspeak: Cosmetic Neurology

Empathypainbrain

Sharon Begley, the Wall Street Journal's superb science writer, featured this emerging discipline in her column of October 1.

I like the term a lot though my best friend, a Houston neurologist, thinks it's terrible.

He says it implies that neurologists give Botox and the like, whereas Begley's emphasis is on pharmacologic augmentation/enhancement of cognitive function.

You see, it's kind of a slippery slope: as soon as you improve mood with SSRIs, you're already sliding down it.

Musicians have been using propanolol - a Beta-blocker - for decades to decrease performance anxiety.

Air Force bomber pilots - and yours truly, the world's only blogging anesthesiologist - use Provigil to enhance completion of their missions.

Wait a minute, what'd you say was my mission?

Oh, yeah, I'm the bombardier.

"Help the bombardier," cried Yossarian. Wait a minute, he thought: I'm the bombardier!

But I digress.

The key thing is to distinguish between therapy and enhancement when the notion of "disease" lacks clear boundaries.

As Peter Kramer put it so memorably in "Listening to Prozac," what does it mean to be "better than well?"


Doandroidsdreamofelectricsheep

Here's the Journal story.
___________________

New Ethical Minefield: Drugs to Boost Memory And Sharpen Attention


Move over, Botox.

Although injections of the most potent natural toxin known to science are marketed as knife-free plastic surgery to reduce wrinkles, Botox treatment is actually a neurological intervention.

The toxin blocks the release of a neurochemical, acetylcholine, from neurons.

That makes it the opening act in what promises - or threatens - to be a significant new drama.

Welcome to "cosmetic neurology."

Sure, there have been reports over the years of, shall we say, recreational use of prescription pharmaceuticals.

Some musicians and nervous public speakers take beta blockers (a heart drug) to vanquish stage fright.

Modafinil (aka Provigil) is a stimulant approved for narcolepsy, but it has an underground following among those who want to feel as alert and rested after five hours of sleep as after eight.

Ritalin, for attention-deficit hyperactivity disorder, improves concentration and the ability to plan, making it popular among healthy adults who simply want an edge in multitasking.

A string of recent discoveries, many of them from small studies that have flown under the radar, suggest that this is only the beginning.

Ritalin, for instance, specifically boosts spatial working memory, or the ability to remember layouts and locations.

Just the thing for back-country hikers, perhaps, or architects mentally juggling blueprints?

Compounds called cholinesterase inhibitors boost levels of the neurotransmitter acetylcholine, which lets neurons communicate with each other. One, donepezil (sold as Aricept), is approved for Alzheimer's disease.

But that may be only one of its talents. In a 2002 study, scientists gave donepezil to one group of healthy, middle-age pilots and dummy pills to another.

The donepezil group did markedly better learning maneuvers in a Cessna 172 simulator, particularly those used in flight emergencies.

Some drugs that affect memory work very selectively.

So-called CREB inhibitors (CREB is a protein essential for incising memories in the brain) "seem to selectively erase only disturbing memories," says neurologist Anjan Chatterjee of the University of Pennsylvania, Philadelphia.

And propanolol, a beta blocker, enhances the memory of events that are emotionally charged and that the brain otherwise suppresses.

It also seems to erase the negative emotions associated with bad memories.

Healthy people given the drug recall disturbing stories as if they were no more emotionally charged than a grocery list.

It's not that neuroscientists are deliberately looking for drugs that might be used for cosmetic neurology.

Rather, these more frivolous uses are being discovered serendipitously, often in research on serious neurological diseases such as stroke.

For instance, scientists find that small doses of amphetamines help stroke patients undergoing physical therapy relearn motor skills, such as tying shoes and using utensils, better and more quickly than with therapy alone.

Taken half an hour before a therapy session, amphetamines seem to promote what's called neuroplasticity, the ability of the brain to form new connections or strengthen existing ones between its neurons.

Those connections underlie both simple and complex sequences of movement.

"With amphetamines, the effects of therapy are more pronounced," says Dr. Chatterjee. "And animal studies suggest that pairing amphetamines with motor training leads to greater brain plasticity."

The day may be coming when perfectly healthy people will pop speed before a tennis lesson or piano instruction, knowing it may stimulate the brain rewiring that underlies a perfect backhand or a flawless "Für Elise."

Botox, after all, originally received government approval to treat two serious eye-muscle disorders, and now aging boomers regard a quick fix as no more momentous than a swipe of mascara.

Cosmetic neurology could well follow the same arc, which means that the time for neurologists to weigh in on the ethical implications of all this is now.

Those implications are profound.

If drugs can improve learning, make painful memories fade and sharpen attention, should physicians prescribe them?

Must physicians prescribe them?

Must patients - perhaps pilots compelled by an employer - take them?

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Might one airline distinguish itself from competitors by advertising its donepezil-taking crews?

Dr. Chatterjee captures the dilemma in a paper he wrote for the current issue of Neurology: "The distinction between therapy and enhancement can be vague, particularly when the notion of 'disease' lacks clear boundaries. ... If one purpose of medicine is to improve the quality of life of individuals who happen to be sick, then should medical knowledge be applied to those who happen to be healthy," lifting patients from normal functioning to enhanced functioning?

We can wring our hands all we want about pills that make learning more effective without greater effort, offending the belief that gains should be hard-earned, or about drugs that selectively erase painful memories, evoking a Brave New World of the happily drugged - and less-than-fully human.

I have a feeling it won't make much difference.

Blue

"Patient" has become synonymous with "consumer," someone unlikely to take kindly to physicians, let alone ethicists, blocking his or her pursuit of self-improvement and happiness.

October 13, 2004 at 10:01 AM | Permalink


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Comments

Re: Cosmetic Neurology

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Posted by: Anne Hillebrand | Dec 19, 2004 3:29:47 AM

i am all for trying new things...i believe in those "nostrums" turned out to be suprisingly curative or corrective (even small stuff like hair masks) and in the different possible uses of a medication initially meant to treat a certain illness then serendipitously discovered to have multi-effective properties, there-fore you shouldn't consider the drug as a medication alone in the first place, once it is known to enhance functions and help mental and other (even mild) conditions,inhibitions,anxieties etc. it should be (generously)prescribed for the "other" uses as well!!! and in some cases even be sold over-the-counter.
p.s.
Dr. Joe, i am trying to email you and the mail keeps returning automatically (as a suspected spam) can you tell me how can i contact you, maybe another email address?

Posted by: Sharon | Nov 28, 2004 12:10:38 PM

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